Answer: it Is D
Explanation:
Answer: 4.5x10^18
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Answer:
<u>Formula</u><u>:</u>
C.
A. C - 6 electrons - 1s2 2s2 2p2
B. O - 8 electrons - 1s2 2s2 2p4
C. N - 7 electrons - 1s2 2s2 2p3
D. Be - 4 electrons - 1s2 2s2